Extend your Inspire 1 flying sessions with extra batteries. The standard Inspire 1 4500mah battery allows up to 18 minutes of flight time. When in flight, your remaining battery power is shown live, letting you know how long you can continue to fly. Advanced algorithms calculate the distance of your aircraft and estimated time to return home, letting you know when it’s time to fly back. The battery reports the voltage of each cell, the total lifetime charges and discharges, and the overall health and battery status. All this helps you keep your Inspire 1 in the air and flying for years to come.